Wikov MGI and Gmeinder Getriebe: Stronger together (2. strana)
Wikov MGI and Gmeinder Getriebe: four years of cooperation of former competitors
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will be projects where it is necessary to
assess the division on an ad-hoc basis.
Investments d
As both companies succeed in meeting
their sales targets for rolling stock gearbo-
xes, space and funding for new invest-
ments are also being created. In Mos-
bach, Germany, we are currently
launching an internal project to further
streamline production and assembly,
where, on the one hand, individual tech-
nologies are gradually being relocated to
ensure a smooth flow through the entire
production process and, on the other,
new supporting technologies are being
purchased. Wikov instead invested in ma-
chinery for large-scale production. We
can mention the two Starrag Heckert
HEC800 X5 five-axis machining centres
with automatic stacker or the Liebherr
LC380 DC gear hobbing machine, e.g. for
pinion production.
New products d
But more importantly, the development of
new products and the use of new materi-
als or artificial intelligence is going well.
At last year's Innotrans, Gmeinder Getri-
ebe launched a range of new gearboxes
for the so-called yellow fleet, i.e. special
vehicles, railway cranes, track inspection
vehicles, tampers, track construction and
rehabilitation machines and maintenance
vehicles. Let's start with the GGT 224S
range of gearboxes with gear shifting for
cranes and multi-purpose vehicles. It is
a two-speed spur gearbox with two diffe-
rent gear ratios optimised, moreover, for
cold environments (-40 °C). The gearbox
or the entire drive can be tested in these
cold conditions at Wikov MGI. The gear-
box is equipped with a disengaging me-
chanism for three positions: driving mode,
working mode and towing position. The
disconnecting mechanism is mechanical
with a sliding sleeve. This type of gearbox
is not driven by an electric traction motor,
as is common on most rolling stock, but
by one or two hydrostatic motors on one
or both sides of the gearbox.
Another type is GGT 263S/630 gear-
boxes for maintenance vehicles. It is also a
two-speed spur gearbox, but with a fixed
ratio. The gearbox housing is made of
aluminium alloy, which reduces its ove-
rall weight. The gearbox is optimised for
very low operating speeds at full load
(<1 km/h). This requires a specially desig-
ned gearbox that ensures sufficient oil
supply to the bearings and gears under all
load conditions, even when driving on
steep gradients. The solution does not re-
quire the use of an oil pump.
rail transport
Cross section of a gearbox for Stadler Regio-Shuttle RS1
continued a
Use of an innovative non-contact sealing made with additive technology
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